久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Latest

China approves patent to COVID-19 vaccine

By Zhang Zhihao | chinadaily.com.cn | Updated: 2020-08-16 19:15
Share
Share - WeChat
A woman holds a small bottle labeled with a "Vaccine COVID-19" sticker and a medical syringe in this illustration taken on April 10, 2020. [Photo/Agencies]

China has granted its first COVID-19 vaccine patent to the adenovirus vector vaccine developed by Chen Wei of the Academy of Military Medical Sciences and Chinese biotech company CanSino Biologics, according to the National Intellectual Property Administration.

The patent was submitted for application on March 18, and was approved on Aug 11, according to the patent document.

The vaccine, dubbed "Ad5-nCoV", uses a weakened common cold virus to introduce genetic material from the novel coronavirus into the human body. The goal is to train the body to produce antibodies that recognize the coronavirus’s spike protein and fight it off.

The phase-two clinical trial of the vaccine has found it is safe and can induce an immune response, according to research published in the journal Lancet last month. The phase-three clinical trial, which will include more participants and be conducted overseas, is currently in the pipeline.

Experts have called adenovirus vector vaccine a promising technique for its safety and potency against COVID-19 based on current evidence, as well as its potential in mass production. The United Kingdom and Russia are also working on a vaccine candidate using this kind of technology.

However, many pressing questions regarding the vaccine candidate remain, such as the longevity of the protection, the appropriate dosage to trigger a strong immune response, and whether there are host-specific differences. These questions will be probed in the larger scale phase-three trials.

Another caveat is that with the vector for the vaccine being a common cold virus, people may have preexisting immunity that kills the viral carrier before the vaccine can take effect, which could partially hamper the immune responses.

Compared with younger people, older participants generally had significantly lower immune responses, the Lancet study found. As a result, elderly people might require an additional dose to induce a stronger immune response, but further research would be needed to evaluate this approach.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 亚洲第一男人天堂 | 久久久久久久久一级毛片 | 成 人 免费 网站 | 毛片高清一区二区三区 | 扒开双腿猛进入爽爽在线观看 | 色本道 | 日本www色视频成人免费网站 | 太平公主三级dvd | 国产成人亚洲毛片 | 亚洲视频在线精品 | 欧美一级片在线 | 久久99热久久精品91 | 国内精品国语自产拍在线观看55 | 午夜精品成人毛片 | 成人免费a视频 | 日韩欧美中文字幕在线播放 | 日日摸人人拍人人澡 | 97se亚洲综合在线韩国专区福利 | 亚洲欧美精品中字久久99 | 久久国产欧美日韩高清专区 | 另类视频在线观看 | 欧美chengren| 99热官网 | 成人免费国产欧美日韩你懂的 | 亚洲国产高清视频 | 久久频这里精品香蕉久久 | 亚洲国产精品国产自在在线 | 色偷偷亚洲偷自拍 | 精品成人在线观看 | 亚欧成人毛片一区二区三区四区 | 荡公乱妇蒂芙尼中文字幕 | 亚洲精品国产成人中文 | 国产三级a三级三级三级 | 怡红院成人网 | 久久免费手机视频 | 男人天堂成人 | 美女扒开腿被男人猛视频 | 老色歌uuu26| 最近最新中文字幕免费的一页 | 日韩一中文字幕 | 国美女福利视频午夜精品 |